Diagnosis And Solution - Bryant 619AHB Series Service Manual

SG-619AHB-01: Service Manual

DIAGNOSIS AND SOLUTION

EEPROM Parameter Error Diagnosis and Solution (E0/F4)
Malfunction Decision Conditions
Indoor or outdoor PCB main chip does not receive feedback from the EEPROM chip
Possible Causes:
• Installation error
• PCB faulty
Troubleshooting
Power off, then restart the
unit 2 minutes later.
Yes
Replace the indoor/outdoor
main PCB.
EEPROM: A read−only memory whose contents can be erased and reprogrammed using a pulsed voltage. For the EEPROM chip location,
refer to Fig 21 and Fig. 22.
Fig. 21 — Indoor PCB
Fig. 22 — Outdoor PCB (18K Model)
NOTE: are for reference only and may differ from the actual unit.
Figures 21 and 22
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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